Identical Twins Jada and Olivia Were Very Similar in Personality

question 67

Multiple Choice

Identical twins Jada and Olivia were very similar in personality throughout childhood. After high school, Jada majored in music and became an elementary school teacher, while Olivia earned a medical degree and joined Doctors Without Borders, traveling to countries gripped by war and epidemics. Later in life, Olivia was more prone to risk-taking than Jada. This difference in personality is a result of

• A) niche-picking.
• B) alterations to Olivia's chromosome-5 gene.
• C) mutations in Olivia's DD genetic makeup.
• D) methylation.

---

Definitions:

Trump Administration

The executive branch of the U.S. government from January 2017 to January 2021, under the presidency of Donald Trump.

Hard-Core Democrats

Individuals with strong allegiance to the Democratic Party in the United States, often supporting party policies and candidates unwaveringly.

Self-Serving Bias

A cognitive bias that involves people attributing success to their own abilities and efforts, but blaming external factors for their failures.

Personal Effort

The amount of work, energy, or dedication an individual puts into a task or goal.